Do you charge a full months rent for security deposit? 

I came quite correct by being someone interested in investing in Ohio and being inquisitive. 1 more point goes to Columbus now - haha - great match so far

For instance in certain cities in and around Cleveland OH  there is what is called POS .. and when properties change hands the municipality does an inspection and requires a large sometimes very large deposit from the buyer with a laundry list of things that must be addressed  ( although most of it U would normally do in a rehab.) but you have to put the money up AND you have to complete the work to get your deposit back.. so in essence you need enough cash to rehab twice.. :(   So implementing this in many markets will not be difficult. 

Rent Roll with specific dwelling number, name of resident, move-in date, monthly rent, amount of deposit held, current balance, additional charges, number of occupants, and a brief history of the resident (good resident / bad resident, special circumstances, etc.)

For example what type of account should I open to hold my tenants first, last and deposit, etc?

You could create a separate event called “other expense” that happens to match the savings contribution, but changes to one do not automatically make changes to the other.  

I guess if the rent and deposits were high enough, maybe, but then the numbers would probably push you to owning.

. $500 and full security deposit returned if they leave in the next week.

So a new purchase would have to match this Net $ out, the new mortgage would have to be >= old mortgage payoff. 

Landlords are out money which is going to make them screen harder, require higher deposits, increase rents, or maybe just get out entirely which would shrink available housing or make it significantly harder to obtain.